Official NHA Assessment

Race 4: CHAMPION STAYER (2400m+): LEGEND OF ARTHUR MR 82 HANDICAP (Open)

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Line Horse
To The Rescue
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
2 / 9
Within 2 points
Significant Diffs
4 / 9
More than 5 points
Detailed Assessment
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Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
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1    Mo Ment              4    56.0    1    0.00     1.5   75    73           75    +0
2    Douglas Dragon       3    58.5    2    0.75     4.0   80    78           78    -2
3    To The Rescue        4    60.0    3    4.00     1.5   83    83           83    +0
4    Romeo's Magic        7    57.5    4    7.25     0.0   77    79           79    +2
5    Coffeeberry          5    52.5    5    13.50    0.0   75    69           69    -6
6    Arlington Action     6    56.5    6    19.75    0.0   75    77           77    +2
99   Coppola              4    54.5    99   0.00     1.5   -     70           70    +0
99   Sea Shanty           4    54.5    99   0.00     1.5   -     70           70    +0
99   Ideal Future         6    52.5    99   0.00     0.0   -     69           69    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Mo Ment 75 93 75 +18 1.5 -
2 Douglas Dragon 80 89 78 +11 4.0 -
3 To The Rescue Line 83 82 83 -1 1.5
4 Romeo's Magic 77 73 79 -6 0.0 -
5 Coffeeberry 75 72 69 +3 0.0 -
6 Arlington Action 75 73 77 -4 0.0 -
99 Coppola - 83 70 +13 1.5 -
99 Sea Shanty - 71 70 +1 1.5 -
99 Ideal Future - 72 69 +3 0.0 -
Assessment Methodology
Calculation Steps:
  1. Identify Line Horse - consistent performer used as reference
  2. Calculate WFA Allowance based on age, distance, and month
  3. Apply Drag Adjustment for beaten margin
  4. Calculate Actual Weight Performance:
    Weight - Drag - WFA
  5. Compare to Line Horse to determine race rating
  6. Apply special rules (maiden caps, layoff allowance)
Key Formulas:
  • Drag Effect: Varies by distance (see Benchmarks page)
  • 1 length ≈ 1kg at 1 mile (1600m)
  • WFA Scale: Based on Admiral Rous's 1855 table
  • Rating Points: 1kg = 2 rating points